Art of treating silk.



\ s. B; BAINS. ART OF TREATING SILK.

APPLICATION FILED SEPT. 16, 1909.

992,803, Patented May 23, 1911.

WIT/VESSS.

TOR/V575 UNITED STATES PATENT, OFFICE.

SOLOMON B. RAINS, OF BBOOKLYNJNEW YORK, ASSIGNOR OF ONE-HALF TO JAMESKEETON, OF BROOKLYN, NEW YORK. I

ART 0] TREATING SILK.

Specification of Letters Patent. ,Patented May 23, 1911, Applicationfiled September 16, 1909. Serial No. 517,975. I

To all whom it may concern:

Be it known that I, SOLOMON B. RAINs,

a citizen of the'United States, residing at Brooklyn, in the county ofKings and State of New York, have invented certain new and usefulImprovements in the Art 'of Treating Silk, of which the following is 'aof silk and more especially to the art of treating silk to removetherefrom gum and other foreign matter.

One of the objects thereof is to formulate a practical art" or methodwhereby silk is treated to remove therefrom the gum, and foreign matterand afterward to dry and lay the fiber of the cleansed silk and to windthe finished product onto spools.

Another object is the attainment of these ends in a simple, eflicientand inexpensive Infipnerwithout repeated handling of the s1 Otherobjects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in the several steps and the relationand order of one or moreof such steps with relation to each of theothers thereof, which will be exemplified in the hereinafter disclosedart or method and the scope of the'application of which will beindicated in the following claims.

The accompanying drawing shows diagrammatically a form of apparatuswhich may be used in carrying out this art.

As tending to a more ready understanding of certain features of thisinvention, it may here be noted that if it is attempted to Thisinvention-aims to provide a simple and practical art or method wherebythe above and other defects and difliculties are remedied.

In carrying out the illustrative method shown in the drawing, there isprovided a tank 1 for the boiling-off liquor. Extending transversely ofthis tank are arranged aplurality of porcelain rollers 2 arranged instaggered relation near the top and bottom of said tank. Mounted uponthe side of the tank are brackets 3 adapted to sup- 1 port therebetweenreels or spools 4. Brackets 5 are also mounted upon the side of the tankto support spools 6. Spool 4 is adapted to rotate freely in itssupporting brackets and spool 6 may be driven in any desired manner forthe purpose hereafter set forth. Rollers 7 supported near the top of thetank 1 simply serve to lead the thread to'and away from the rollers 2. 8isa finishing or .burnishing roll adapted to be heated, the object ofwhich will be described hereafter. Adjacent the bracket 5 there isprovided a thread conduit 9 adapted to lay the thread upon the spool 6in any suitable manner. I

The operation follows: Upon spool 4 is wound the silk as it comes fromthe spin ners, and at that stage in its manufacture it and other foreignmatter -inherent in the raw material. One or more of these spools ofspun or thrown silk is placed between the brackets 3, and the loose endof the thread is led over the various rollers and through theboiling-off liquor in the tank 1. From the last of the idler rollers 7the silk is conducted in proximity to the finishing roll 8, which isheated tothe proper temperature for completely drying and laying thefiber of the thread as it passes. The endof the thread is then ledthrough the conduit 9 and onto the taking-01f spool or reel 6,upon whichit is wound in its cleansed and finished condition. In passing throughthe stances aforesaid are removed and the thread when wound upon thetaking-off spool 6 is in finishedcondition and ready for use as desired.It isto be understood that if desired, the silk in the single threadcontains a considerable quantity of the gums boiling-off liquor all ofthe foreign sub--- can be taken from a large creel or jack, passedthrough the boiling-off liquor and then utilized directly in theso-called operation of warping. This would obviate the rewindingoperation and save needless expense whenever it is found desirable toimmediately warp the thread.

It should be understood that while vari ous boiling off solutions may beused in carrying out this art, a liquor of the following constituencyhas been found by applicant to produce high grade results. Forapproximately every hundred pounds of "silk degummed a water solution isused containing about 30 per cent. soap, 2?; per cent. bicarbonate ofsoda, and 2% per cent. sal soda. The liquor is maintained at about 212F. The silk is completely deguinmed in thirty seconds and when dry maybe used immediately in the manufacture of silk fabrics, or dyed in thethread if such product is desired.

It will be seen from the above description that there is provided an artor method of treating silk whereby all of the objects heretofore setforth are attained in a simple and practical manner. It will also benoted that the silk is boiled off evenly and thoroughly whereby it isfreed from all gums and foreign substances and a finished product isobtained, which, while clean, remains strong and uninjured by excessivehandling.

In view of the foregoing disclosure, it will be obvious to those skllledin its art that this process may be carried out in different ways fromthose specifically referred to, and with the assistance of various formsof apparatus, without, however, departing from the scope of thisinvention, and accordingly it is intended that all matter contained inthe above description shall be interpreted as illustrative and not in alimiting sense. It is also to be understood that the language adopted inthe following claims is intended to cover all of the generic andspecific features of the herein-disclosed invention. and all statementsof the scope thereof which as a matter of language might be said to fallthere between.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is:

1. The art oftreating silk, which comprises drawing the silk lengthwisethrough boiling-off liquor.

2. The art of treating silk, which comprises leading a thread from aspool of thrown silk through boiling-off liquor.

3. The art of treating silk, which comprises leading a thread from aspool of thrown silk first through a vat containing a suitableboiling-off liquor to remove gum and other foreign matter, and then inproximity to a finishing roller whereby the silk is dried and the fiberlaid.

4:. The art of treating silk, which coinprises leading silk in thethread through a boiling-off liquor, then passing the thread inproximity to a neated roller and finally winding it on a spool.

5. The art of treating silk, which comprises leading thrown silk frolnspools through a boiling-0E liquor, drying and laying the fiber, andre-winding on other spools.

6. The art of treating silk, which comprises passing thrown silk in thesingle thread through boiling off liquor.

7. The art of treating silk, which comprises leading a thread from aspool of thrown silkthrough suitable boiling off liquor whereby gum andother foreign matter is removed therefrom.

8. The art of treating silk, which comprises leading a thread of thrownsilk from spools through a boiling off liquor, drying and laying thefiber, and rewinding on other spools.

In testimony whereof I affix my signature, in the presence of twowitnesses.

SOLOMON B. RAINS.

-Witnesses:

HELEN M. SEAMANS, EVERETT J. Pnox.

